We live in a time when it seems as if the guard rails that briefly deterred the spread of anti-Semitism have collapsed.
That seems particularly true in Europe, where the memory of the Holocaust has either dimmed or is interpreted in such a fashion as to not connect with the current violence and hatred against living Jews. We see evidence of this in the rise of a BDS movement predicated on denying rights to Jews that no one would think to withhold from any other people and a refusal of others to understand that anti-Zionism is inherently anti-Semitic. We see it in the willingness of politicians, even here in the United States, to spread the classic tropes of anti-Semitism about Jews.